The Legal Compass – Your Own Personal Legal Assistant

Legal Compass is a cross-platform Web + Android application built using React, React Native (Expo), and Google Cloud's Generative AI services. It simplifies complex legal documents into clear, multilingual summaries with voice output, clause-level risk detection, and a context-aware Q&A chatbot.

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Table of Contents

• Features
• Tech Stack
• System Architecture
• Setup & Installation
• Google Cloud Setup
• How It Works
• Future Scope
• Contributors

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Features

• Cross-Platform: Web + Android app using React + Expo.
• Multilingual Support: Summaries in Hindi, Marathi, Tamil, Telugu, and more.
• Multimodal Outputs: Text + Voice summaries using Google Text-to-Speech.
• Context-Aware Chatbot: RAG + Gemini-powered Q&A for accurate legal answers.
• Missing Clause Detection: Alerts for absent critical clauses.

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Tech Stack

Frontend

• React (Web App)
• React Native + Expo (Android App)

Backend

• Node.js + Express.js
• MongoDB (User data, document metadata)
• Cloudinary ( file storage )

AI/ML & Cloud

• Google Cloud Vertex AI: Generative AI & embeddings
• Google Document AI / Vision AI: OCR for text extraction
• Google Cloud Translation API: Multilingual support
• Google Text-to-Speech API: Voice output generation
• Vector Database: Pinecone / pgvector for RAG pipeline
• Google Cloud Storage: Secure document storage

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System Architecture

Flow:

1. Document Upload → 2. OCR Text Extraction → 3. Text Chunking → 4. RAG Retrieval → 5. Summarization → 6. Multilingual Translation → 7. Text-to-Speech Output → 8. Q&A Chatbot → 9. Web/Android UI

Setup & Installation

1. Clone the Repository:

   git clone https://github.com/your-username/ase_genai.git
   cd ase_genai

2. Install Dependencies:

   npm install

3. Run Web App:

   npm start

4. Run Android App (Expo):

   npx expo start

5. Backend Setup:

   cd backend
   npm install
   npm start

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Google Cloud Setup

• Enable Vertex AI, Document AI, Translation API, Text-to-Speech API, Cloud Storage in the Google Cloud Console.
• Download and add your service account key to your backend as service-account.json.
• Set environment variables for Google Project ID, API keys, and Database URLs.

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How It Works

1. User uploads PDF/Image → OCR extracts text.
2. RAG retrieves relevant clauses → Gemini simplifies text.
3. Missing clauses flagged.
4. Summaries translated into multiple languages.
5. Text-to-Speech generates voice narration.
6. Context-aware chatbot answers user questions.

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Future Scope

• Add AI-powered contract comparison and legal clause recommendations for better decision-making.
• Automatic checks for compliance with local laws & industry regulations.
• Suggest better terms or alternatives for clauses marked as risky or unfair.
• Integration with legal professionals for review.
• Offline mode for rural areas with poor connectivity.
• Expanded language support for all Indian languages.

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Contributors

• Team Name: [Your Team Name]
• Team Members: [List Names]
• Hackathon: [Hackathon Name & Date]